On Thu, Apr 24, 2014 at 05:03:38PM -0700, Adam Lawson wrote: > Does Heat support HOT templates where the user can enter the number of > instances to launch with a specific configuration? I would think so but > besides not finding anything other than count: <val>, and the fact that the > resource_id parameter needs to be unique seems to suggest this approach > isn't how to go about it. There are a few resources which allow you to do this, the simplest being OS::Heat::InstanceGroup http://docs.openstack.org/developer/heat/template_guide/openstack.html#OS::Heat::InstanceGroup Here's an example of how to use it: https://github.com/openstack/heat-templates/blob/master/cfn/deb/MultiNode_DevStack.yaml#L119 More recent (Icehouse) versions of heat also have some additional resources which provide somewhat more flexible (not limited to only Instance resources and don't rely on the AWS LaunchConfiguration resource) definition of grouped resources: http://docs.openstack.org/developer/heat/template_guide/openstack.html#OS::Heat::ResourceGroup http://docs.openstack.org/developer/heat/template_guide/openstack.html#OS::Heat::AutoScalingGroup Here's an example HOT template which demonstrates using the native AutoScalingGroup resource (the static ResourceGroup works in a similar way): https://github.com/openstack/heat-templates/blob/master/hot/autoscaling.yaml#L60 Hope that helps, Steve > > Thoughts? > . > > *Adam Lawson* > AQORN, Inc. > 427 North Tatnall Street > Ste. 58461 > Wilmington, Delaware 19801-2230 > Toll-free: (844) 4-AQORN-NOW > Direct: +1 (302) 268-6914 > _______________________________________________ > Mailing list: http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack > Post to : openstack at lists.openstack.org > Unsubscribe : http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack -- Steve Hardy Red Hat Engineering, Cloud